AAMC 1 - Psych/Soc Flashcards
Identify this phenomenon:
In a famous experiment, participants were shown several pictures including one picture of a car stopped at a yield sign. Later, these participants were presented with written descriptions of the pictures, and some of these descriptions contained misinformation, such as a description of a car stopped at a stop sign. When asked to recall the details of the pictures, many participants insisted they had seen a stop sign in the picture.
This example illustrates the misinformation effect, where a person’s recall of an event becomes less accurate due to the injection of outside information into the memory.
What is the misinformation effect?
The misinformation effect is when a person’s recall of an event becomes less accurate due to the injection of outside information into the memory.
Why do people often retrieve unpresented members of a category when tested on their memory for a series of presented concepts from that category?
Spreading activation suggests that, when the representation of a concept is activated in memory, the activation spreads to concepts that are semantically or associatively related to it.
Thus, people often retrieve unpresented members of a category when tested on their memory for a series of presented concepts from that category.
In which of Piaget’s stages of cognitive development is conservation achieved?
Concrete operational, ages 7-11
Sound-induced vibrations depolarize hair cells of the cochlea by opening ion channels that are gated in what way?
A. Chemically
B. Mechanically
C. Electrically
D. Synaptically
Solution: The correct answer is B.
- Chemically gated ion channels require the binding of a molecule to the ion channel, causing it to open. This is observed during olfaction and gustation, but not during the activation of hair cells, which occurs upon the physical perturbation of the hair cell membrane.
- Sound wave-induced vibration of hair cells generates tension within the cell membrane that directly activate ion channels responsible for auditory signaling. This type of ion channel is a mechanically-gated channel, such that upon its activation, it generates a depolarizing current within the cell.
- Electrically gated ion channels activate upon a change in membrane potential. Activity of electrically gated ion channels is associated with action potential propagation, but not vibration of the hair cell membrane.
- While some ion channels are localized to the synapse, synaptic gating is not a mechanism by which ion channels can be activated.
Describe the two perspectives of actor-observer bias
Actor-observer bias is where an actor tends to explain his or her behavior by situational factors, while an observer tends to explain the actor’s behavior based on stable, internal states. We have an external vs. internal explanation for behavior.
How can one’s sympathetic arousal be measure without a researcher testing any internal aspect of the subject?
A. A measure of electrical conductivity of the skin
Increases in the electrical conductivity of the skin is a physiological indication of increased sympathetic arousal, which is associated with anxiety.
True or False:
In-group bias becomes less extreme in times of conflict.
False.
In-group bias becomes more extreme in times of conflict.
True or False:
Concerning General Adaptation Syndrome, the course of the stress response is dependent on the type of stressor.
False.
According to Selye’s General Adaptation Syndrome (GAS), an organism’s stress response always follows a similar course, regardless of the exact nature of the stressor.
Which type of design is LEAST appropriate for research on residential segregation?
A. Ethnographic methods
B. Experimental methods
C. Quantitative methods
D. Survey methods
B. Experimental methods
Experimental methods are generally not appropriate for the study of residential segregation. Experiments require random assignment to different groups (usually an intervention group and a control group). Except under specific circumstances, it would be unethical and impractical to randomly assign participants to different groups in which residential segregation varies.
What is ethnographic research?
Ethnographic research studies people or cultures in their own environment, in real social settings.
Participants in a weight-loss program agree to have their body mass index (BMI) measured to track their progress in the program. Among a sample of 72 participants, the mean BMI is 30 and the median BMI is 25. Which statement provides an accurate description of the sample?
A. More participants had a BMI over 25 than a BMI under 25.
B. The majority of participants had a BMI between 25 and 30.
C. Half of the participants had a BMI over 25 and half had a BMI under 25.
D. More outliers among the participants had a BMI under 25 than a BMI over 30.
C. Half of the participants had a BMI over 25 and half had a BMI under 25.
The median represents the middle of the distribution, splitting the sample distribution of values in half. Thus, a median of 25 can be accurately described as when half of the sample has a BMI over 25 and the other half of the sample has a BMI under 25.
Often utilized when studying communicable diseases, which type of analysis maps the series of relationships among a set of individuals?
A. Social support analysis
B. Social network analysis
C. Social stratification analysis
D. Social reproduction analysis
B. Social network analysis
Used in some epidemiological studies, social network analysis is the method described in the question. Network analysis involves mapping the social relationships that exist among a set of individuals.
Which effect is LEAST likely to occur with the process of gentrification?
A. Development of affordable housing
B. Increased neighborhood stratification
C. Displacement of lower-income residents
D. Expanded tax base for local government
A. Development of affordable housing
Gentrification describes the process in which relatively affluent individuals move into a neighborhood that recently consisted of residents with moderate to low income. With the arrival of more affluent residents, housing demand increases and often leads to a decrease in affordable housing available to lower income residents.
In contrast, the other options are more likely to occur with the process of gentrification.
Which statement does NOT identify an aspect of the concept of assimilation?
A. Assimilation is the influence that cultural changes have on an individual’s health.
B. Assimilation is the process of cultural adaptation that results from geographic mobility.
C. Assimilation occurs when individuals adopt the cultural norms of a dominant culture.
D. Assimilation occurs when individuals relinquish the cultural norms of their childhood.
A. Assimilation is the influence that cultural changes have on an individual’s health.
Assimilation refers to the process in which new members of a society adopt the norms and values of the dominant culture. Each of the other options provides an element of assimilation (cultural adaptation, adopting new norms, and relinquishing old norms). However, this option does NOT describe an aspect of assimilation itself, but instead speculates about a possible consequence of assimilation.